“For many, riches have stood in the way of philosophizing; poverty is unimpeded, free from care.”
multis ad philosophandum obstitere divitiae; paupertas expedita est, secura est.
As a note, Seneca was fabulously wealthy, and the only truly poor but serious philosophers of the ancient world that readily present themselves to the mind are Diogenes and Socrates. Indeed, subsequent history has strongly suggested that a certain moderate affluence is most conducive to philosophical speculation.